/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineTurnBasedInterface.h
Leave the match, providing an outcome for the player
virtual void QuitMatch ( [EMPMatchOutcome::Outcome](API\Plugins\OnlineSubsystem\Interfaces\EMPMatchOutcome__Outcome) Outcome, int32 TurnTimeoutInSeconds, [FQuitMatchSignature](API\Plugins\OnlineSubsystem\Interfaces\FQuitMatchSignature) QuitMatchCallback )